Weed-destroying means.



No. 803,090. PATENTED 00122.1,1'000' G.G.BRADF0RD.V WEED DESTROYING MEANS.

APPLICA'JI'IOH FILED DEC. 12, 1904 2 SHEETS-SHEET 1.

WITNESSES:

' ATTORIVQEYJ" UNITED s'rn'gns Specification of Letters Patent.

A NT O CE- CASPER e. BRADFORD, or rirrronronn, MISSOURI. wEEo-DEsTRoYIN MEANS.

Patented Oct. 31, 19051 Application filed December 12,1904. Serial No. 236,526.

T all whom it may concern:

,Be it known-that I, CASPER G. BRADFORD, residing at Tiptonford, in the countyof Newton and State of Missouri, haveinvented anew and Improved eed-Destroying Means, of

- stated of a simple and economical construction which can be easily manipulated and which will effectively serve its lntended purpose.

In its generic, nature my invention comprehends a spray-distributing member adapted to be supported transversely upon a hand or platformcar, having a plurality of sprayingn ozzles, a reservoir or supply-tank that contains the spraying liquid, a pump that con n'ects with the spray-distributing pipe and the tank, and a pump-actuating mechanism coupled with the axle of one of the drive-Wheels,

and an automatically-operated means that rej lieves the distributing-pipe of excessive pressure by reason of a rapid speedof the car and the consequent pump action.

In its more complete form my invention includes, in combination with a spray-distributing means adapted to be connected to a carbody, including a pump actuated by the movement of the car, a reservoir for holding the spraying liquid, removably supported on the car-platform, a connection that joins the tank and the pump, having a special form of coup: ling whereby the reservoir may be readily removed from the car-platform without disarranging the spraying devices and the actuat} ing-pump therefor, and ameans for automati'cally relieving the spraying-pipe from excessive fluid -pressure and for utilizing the said'excessive, fluid-pressure by returning it to the tank-reservoir for agitating the contents oftheholder or tank to constantly create a thorough intermixing of the spraying substance within the reservoir.

ln'its more specific nature my invention consists in certain details of construction and peculiar combination of parts, all of which will 'be hereinafter fully described, pointed out in the appended claims, and illustrated in the accompanying drawings, in which Figure-l is a perspective view illustrating my invention as applied to a hand-car. Fig.-

is a plan view thereof. Fig. 3 is a crosssection taken on the line 3 3 of Fig. 2. Fig.

emergency, as will hereinafter be line 44 of Fig. 3 and illustrating the sectional gear-wheel-connectionsmounted on the pump drive-axle. Fig. 5 is a vertical section, on an enlarged scale, of. the reservoir or tank with the combined pressure-equalizing and agitating derice therein. Fig. 6 is a detail view of the coupling means in the lead pipe from the tank to the pump; and Fig. 7 is a detail view of a portion of the pipe that leads from the main or spray-distributing pipe to the pump, showing the checlvvalve therein.

. In the practical application of my invention the same may be readily applied for use on the platform of an ordinary car or upon a hand-car platform; but when used on the latter type of car-platform the tank is removably mounted on the said car and connected with the pump devices by a coupling means capable of being quickly manipulated to allow for the rapid removal of the tank in cases of more fully explained.

,In the drawings I have shown my invention as appliedto the ordinary type of handcar, with the propelling power omitted.

A designates the platform, and aone ofthe,

wheeled axles, which, as shown, isthe driving power foractuating the pump B, which is pendently secured on the platform'A adjacent the axle a and has the upper end ofits piston-rod 6, arranged to connect with the crank member 0 of the shaft G, journaled in the bearing-brackets 10 10, that project up from the platform A. Upon the crank-shaft O is mounteda chain-wheell), around which and a chain-Wheel E, fixedly mounted on the drive-axle (4, takes the endless drive-chain K, j

as clearly shown .in Fig. 4, by reference to which has a semicircular hub-section I. c toreceive the clamp-bands 1:, and said sections are further joined by the clamp members at each face of the wheel. that are joined by the bolts 0 e, as shown. By making the wheel E in the manner stated it can be easily fitted upon the drive-axlewithout removing the track-wheels and withoutltrouble.

F designates the main spraying-pipe pendently mounted in bearings ff on the endof the car-platform, and the said pipe has a plurality of spraying members joined therewith, three being shown in the drawings designated 1, 2, and 2*, arranged one at each end and one at the center, and. to facilitate the discharge which it will be also noticed the said wheel'E too .intake f, provided with a regulating-valve 7 and which connects, through the flexible 2 tube f", with the discharge of the pump P, as I shown. The distributing-pipe F is also provided with an outlet f", to which is connected one nd of a flexible pipe j. that joins with an automatically-actuated pressure-relief valve i', mounted within the tank or reservoir H, that contains the spraying liquid and which when used on a hand-ear, as shown. is preferably mounted upon a bracket /1 that projects from the side of the car, as clearly illustrated in Fig. l, to facilitate its ready removal in cases of emergency.

The relief-valve G consists of a metal base g, having a series of radial grooves in its upper face and a central vertical stem g", upon which is mounted a hollow inverted cup or dome member 9, yieldingly mounted upon the stem and held balanced under ordinary conditions by a cushion-spring on the stem g beneath it and a similar spring 2" above it, the tension of the latter being regulated by a set-nut ",'the tightening of which serves to hold the hollow cup g down the more tightly against the base, and consequently requires a greater fluid-pressure to lift the cap, the reason for which will be presently explained.

The pipe p, that connects the pump with the tank, is of metal and is provided with a valve p near the tank to cut off'the spraying fluid from the tank, and when my invention is used on a hand-car, as shown, the said pipe 1 is composed of two sections joined by a coupling, which includes two disks p 12, one of which has a segmental flange p to fit over the rim of the other disk and the other has a clamping-lever connected thereto, having a clamping-jaw for engaging the disk-rims and adapted to beheld locked to the opposing pipe-section in the manner clearly shown in Fig. i. To makea of the disks 11 19 may have rubber jackets or washers, as shown. I

.By reason of connecting the two sections of pipe in the manner stated it is manifest that in case of emergency when the'car must be quickly lifted ofi the track one of the car crew quickly detaches the tank connection to the pump and lifts off the tank, while the other erewmen lift the car off the track.

-\Vhen my improvements are used on an ordinary platform-car, the pipe can be a continuous one and not require the coupling means specified.

To throw the pump out of action, the chainwheel-on the crank-shaft is slidably mounted upon the said shaft and has a flanged hub 30, with which engages the forked end of a shiftfiuid-tight joint, the faces f ing-lever Jl. suitably mounted on the l'rnniing, the movement of which in the pro er dircction will throw the chain-wheelout of engagement with a clutch-collar in, lixodly mounted on the crank-shaft.

From the foregoing description. taken in connection with the accompanyingdrawings. it is believed the completeconstruction of my invention will be readily understood. To bring the same into operation, it is only necessary to open the valve in the pipe from the tank to the pump and start they pump by throwing the drive-wheel on the crank-axle into mesh with the clutch-collar on the said shaft, and assuming the car to be inmotion the pump will take the spraying fluid from the tank and eject it under pressure through the spraying-tube, Should the speed of the car become excessive andthe pump action be such as to exerta pressure on the liquid in the distributing-pipe in excess of what the reliefalve in the tank is adjusted for, the fluid that passes from the distributing-pipe into the creased pressure would'lift the said dome, and in consequence provide for a free escape of the fluid back into the tank, thus relieving the distributing-pipe of undue pressure and at the same time by reason of the return flow to the tank provide for a thorough agitation of the spraying mixture within the tank.

Having thus described my invention, I claim and desire to secure by Letters Patent-- 1. In a weed-destroying means of the character described, the combination with the carplatform, the tank removably mounted there on, a pump on the car, a pipe connection that joins the pump and-the tank, said connection being of two sections, an adjustable coupling for joining said sections, and pump-actuating mechanism geared with and operated from one of the car-axles; of a distributing-pipe having one or more flexible discharge-nozzles, a valyed intake-pipe therefor that connects with the pump, and an outflow-pipe connected at one end to the distributing-pipe and having its other end held within the tank and avalve at said other end of said outflow-pipe and with- ,in the tank, to open up under excess pressure from the distributingpipe substantially as shown and described.

In eombinatiomwith atank, the pump in connection therewith, and the distributing-pipe supplied from the pump, said pipe having a supplemental discharge; of a reliefvalve mounted in the tank, said valve comprising a base, having a central stem, an invertc cap or dome held against said base and aperturcd to permitpassage of said stem, a coil-spring on said stem between the dome and-the base, a second coil-spring on said stem outside of said dome and a check-nut on said stem against which the second spring abuts, a pipe connection joining the suppledome of the relief-valve by reason of inwith the hollow dome of the relief-valve in t e tank substantially as shown and described.

3. -A "need-destroying device comprisin the combination with ya hand-car, of a tan% detachably mounted at one side of said handcar to the platform thereof, a pump mounted on said hand-car. drive mechanism connecting the pump with the car-axle, means for shifting the said drive mechanism from 0 erative connection with the' pump, a va ved pipe connection joining the tank to the pum a distribution pipe arran ed trans verse y across the end of the ear-platform, hangers connected to the car-platform to receive said distribution-pipe, a valved p'ipeconnection between said distribution pipe and said pump, a plurality of nozzles connected with said distribution-pipe, a" supplemental discharge for said distribution-pipe, a flexible connection connected at one end to said suppleinental discharge, and having its other end passing down into the tank, a relief-valve connected to the free end of. said last-named flexible pipe conneetionand held loosely Within the tank, all being arranged substantially as shown and described. 5

4. An apparatus of the character stated comprising the combination With a hand-car, a pump mounted thereon, drive mechanism for said pump, said pump-drive mechanism being connected with the drive-axle of the car, lever-operated clutch devices for connecting and'disconnectnig said pump-drive mechanism from operative connection with the car-axle, a su plemeutal platform eonnected to the-ear-p at'forns. at one side there-- of, a tank held. on. said supplemental platform, a valved pipe connecting the pump with said tank, said valved pipe connection consisting of two parts detachably connected to one another to permit the removal of the tank at times, a distribution pipe transversely held across the end of the car, distribution-nozzles at each end of the distribution-pipe, a supplemental distribiition-nozzle intermediate of the ends of the said diistri bution-pipe and arranged to discharge at right angles to the first mentioned nozzles, a valved pipe connection between said distribution-pipe and saidpump, a flexible pipe connected. at one end. to said distributionpipe and arran ed with its free end loosely held in the tan. a valve connected to said free end of the flexible pipe and arranged to open under excess pressure within thefldistributing-pipe, all being arranged substan tially as shown and described. 7

' C. G. BRADFORD.

Witnesses:

LEE DAVIS, J. F. OSBORNE. 

